Our conceptions of alien life are based on a sample of one: Earth’s life. That means even our wildest imaginings are likely to be completely off beam

With the help of their webs, spiders are capable of foresight, planning, learning and other smarts that indicate they may possess consciousness

Justin Bieber and his wife Hailey Baldwin are opening up in an intimate series for Facebook Watch in which they discuss their marriage, their problems and their lives together.

Half a million people taking part in the UK Biobank, which gathers genetic information for researchers to study, won't be told if they turn out to be genetically vulnerable to the coronavirus

New images reveal threads of ultra-hot gas woven throughout the sun's corona, in the most detailed look at previously unseen parts of the atmosphere of our closest star

Humans, chimpanzees, gorillas and bats have evolved to be good at metabolising alcohol, according to a study that suggests many mammals can get drunk

We tend to overestimate our height and underestimate our weight to fit society’s ideals, or because we think we're still the same as our younger selves

Weird blasts of radio waves from space called fast radio bursts have been baffling astronomers since they were discovered, but after finding one in our galaxy we may finally know what creates them

Title: Low-Income Mothers May Overfeed Their Infants
Category: Health News
Created: 4/28/2012 10:05:00 AM
Last Editorial Review: 4/30/2012 12:00:00 AM

Title: Health Tip: Keeping Seniors on Their Feet
Category: Health News
Created: 4/29/2014 7:35:00 AM
Last Editorial Review: 4/29/2014 12:00:00 AM

Title: Calling Young Girls 'Fat' May Increase Their Teen-Obesity Risk
Category: Health News
Created: 4/29/2014 2:36:00 PM
Last Editorial Review: 4/30/2014 12:00:00 AM

Title: Phone-Focused Parents a Danger to Their Kids at Playground
Category: Health News
Created: 4/25/2015 12:00:00 AM
Last Editorial Review: 4/27/2015 12:00:00 AM

Title: Kids of Older Moms May Have a Leg Up on Their Peers
Category: Health News
Created: 4/29/2016 12:00:00 AM
Last Editorial Review: 4/29/2016 12:00:00 AM

Title: 'Dr. Google' May Undermine Parents' Trust in Their Pediatrician
Category: Health News
Created: 5/5/2017 12:00:00 AM
Last Editorial Review: 5/5/2017 12:00:00 AM

Title: 2 in 3 Women Unhappy With Their Breast Size. Could That Harm Their Health?
Category: Health News
Created: 2/6/2020 12:00:00 AM
Last Editorial Review: 2/6/2020 12:00:00 AM

Title: Can Men Dine Their Way to Higher Sperm Counts?
Category: Health News
Created: 2/21/2020 12:00:00 AM
Last Editorial Review: 2/24/2020 12:00:00 AM

ABSTRACT

Bacteria harbor viruses called bacteriophages that, like all viruses, co-opt the host cellular machinery to replicate. Although this relationship is at first glance parasitic, there are social interactions among and between bacteriophages and their bacterial hosts. These social interactions can take on many forms, including cooperation, altruism, and cheating. Such behaviors among individuals in groups of bacteria have been well described. However, the social nature of some interactions between phages or phages and bacteria is only now becoming clear. We are just beginning to understand how bacteriophages affect the sociobiology of bacteria, and we know even less about social interactions within bacteriophage populations. In this review, we discuss recent developments in our understanding of bacteriophage sociobiology, including how selective pressures influence the outcomes of social interactions between populations of bacteria and bacteriophages. We also explore how tripartite social interactions between bacteria, bacteriophages, and an animal host affect host-microbe interactions. Finally, we argue that understanding the sociobiology of bacteriophages will have implications for the therapeutic use of bacteriophages to treat bacterial infections.

A number of partial articulated specimens of Cheiracanthus peachi nov. sp. have been collected from the Mey Flagstone Formation and Rousay Flagstone Formation within the Orcadian Basin of northern Scotland. The new, robust-bodied species is mainly distinguished by the scale ornament of radiating grooves rather than ridges. Compared to other Cheiracanthus species in the Orcadian Basin, C. peachi nov. sp. has quite a short range making it a useful zone fossil. As well as describing the general morphology of the specimens, we have also described and figured SEM images of scales and histological sections of all elements, enabling identification of other, isolated remains. Of particular biological interest is the identification of relatively robust, tooth-like gill rakers. Finally, the species has also been identified from isolated scales in Belarus, where it appears earlier and has a longer stratigraphical range, implying the species evolved in the marine deposits of the east and migrated west into the Orcadian Basin via the river systems.

Salicinoids form a specific class of phenolic glycosides characteristic of the Salicaceae. Although salicinoids accumulate in large amounts and have been shown to be involved in plant defense, their biosynthesis is unclear. We identified two sulfated salicinoids, salicin-7-sulfate and salirepin-7-sulfate, in black cottonwood (Populus trichocarpa). Both compounds accumulated in high amounts in above-ground tissues including leaves, petioles, and stems, but were also found at lower concentrations in roots. A survey of salicin-7-sulfate and salirepin-7-sulfate in a subset of poplar (Populus sp.) and willow (Salix sp.) species revealed a broader distribution within the Salicaceae. To elucidate the formation of these compounds, we studied the sulfotransferase (SOT) gene family in P. trichocarpa (PtSOT). One of the identified genes, PtSOT1, was shown to encode an enzyme able to convert salicin and salirepin into salicin-7-sulfate and salirepin-7-sulfate, respectively. The expression of PtSOT1 in different organs of P. trichocarpa matched the accumulation of sulfated salicinoids in planta. Moreover, RNA interference-mediated knockdown of SOT1 in gray poplar (Populus x canescens) resulted in decreased levels of sulfated salicinoids in comparison to wild-type plants, indicating that SOT1 is responsible for their formation in planta. The presence of a nonfunctional SOT1 allele in black poplar (Populus nigra) was shown to correlate with the absence of salicin-7-sulfate and salirepin-7-sulfate in this species. Food choice experiments with leaves from wild-type and SOT1 knockdown trees suggest that sulfated salicinoids do not affect the feeding preference of the generalist caterpillar Lymantria dispar. A potential role of the sulfated salicinoids in sulfur storage and homeostasis is discussed.

G-quadruplex, assembled from a square array of guanine (G) molecules, is an important structure with crucial biological roles in vivo but also a versatile template for ordered functional materials. Although the understanding of G-quadruplex structures is the focus of numerous studies, little is known regarding the control of G-quartet stacking...

We document that the undifferentiated chaotic Ligurian Units of the Monferrato–Torino Hill sector (MO-TH) at the Alps–Apennines junction consist of three different units that are comparable with the Cassio, Caio and Sporno Units of the External Ligurian Units of the Northern Apennines. Their internal stratigraphy reflects the character of units deposited in an ocean–continent transition (OCT) zone between the northwestern termination of the Ligurian–Piedmont oceanic basin and the thinned passive margin of Adria microcontinent. The inherited wedge-shaped architecture of this OCT, which gradually closed toward the north in the present-day Canavese Zone, controlled the Late Cretaceous–early Eocene flysch deposition at the trench of the External Ligurian accretionary wedge during the oblique subduction. This favoured the formation of an accretionary wedge increasing in thickness and elevation toward the SE, from the MO-TH to the Emilia Northern Apennines. Our results therefore provide significant information on both the palaeogeographical reconstruction of the northwestern termination of the Ligurian–Piedmont oceanic basin and the role played by inherited along-strike variations (stratigraphy, structural architecture and morphology) of OCT zones in controlling subduction–accretionary processes.

Supplementary material: A spreadsheet with X-ray fluorescence spectrometry and inductively coupled plasma mass spectrometry whole-rock major and trace element composition of mantle peridotites, and photomicrographs of mantle peridotites are available at https://doi.org/10.6084/m9.figshare.c.4519643

In Arabidopsis, LTR retrotransposons are activated by mutations in the chromatin gene DECREASE in DNA METHYLATION 1 (DDM1), giving rise to 21- to 22-nt epigenetically activated siRNA (easiRNA) that depend on RNA DEPENDENT RNA POLYMERASE 6 (RDR6). We purified virus-like particles (VLPs) from ddm1 and ddm1rdr6 mutants in which genomic RNA is reverse transcribed into complementary DNA. High-throughput short-read and long-read sequencing of VLP DNA (VLP DNA-seq) revealed a comprehensive catalog of active LTR retrotransposons without the need for mapping transposition, as well as independent of genomic copy number. Linear replication intermediates of the functionally intact COPIA element EVADE revealed multiple central polypurine tracts (cPPTs), a feature shared with HIV in which cPPTs promote nuclear localization. For one member of the ATCOPIA52 subfamily (SISYPHUS), cPPT intermediates were not observed, but abundant circular DNA indicated transposon "suicide" by auto-integration within the VLP. easiRNA targeted EVADE genomic RNA, polysome association of GYPSY (ATHILA) subgenomic RNA, and transcription via histone H3 lysine-9 dimethylation. VLP DNA-seq provides a comprehensive landscape of LTR retrotransposons and their control at transcriptional, post-transcriptional, and reverse transcriptional levels.

This paper focuses on handheld and top-of-hole techniques which have appeared since 2007 or have undergone major improvements, and discusses their benefits, challenges and pitfalls, why we use them and what to expect from them. There is an ongoing need to be innovative with the way we undertake mineral exploration. Recent technological advances that have been applied to successful mineral exploration include on-site or portable instruments, on-site laboratory technologies, various core scanners, and technologies for fluid analysis. Portable or field technologies such as pXRF, pXRD, pNIR-SWIR, µRaman and LIBS aid in obtaining chemical and mineralogical information. Spectral gamma tools, a well-known technology, recently took advantage of improved ground and airborne (drone) instruments, to complement hyperspectral imagery. At mine and exploration sites, top-of-hole sensing technologies, such as Lab-at-Rig® and various core scanners (both spectral- and XRF-based) have become useful tools to analyse metres of core as it is being drilled. Fluid analyses are not as common as analyses of solid materials, but there are advances in such technologies as anodic stripping voltammetry, polarography and ion-exchange electrodes aiming for analysis of commodity or environmentally important elements.

Field-portable geochemical techniques and on-site technologies now offer instant response and flexibility for most exploration tasks. By providing relevant data within minutes, they allow safer field decisions and focus on the most promising finds, while saving valuable resources in sampling grids or drilling. More efficient laboratory analysis programs are supported by sample screening and homogeneity checking on-site. Field analyses are not always as accurate as laboratory ones, but most of the time can be correlated with them, enabling reliable decisions. The level of confidence in field-made decisions needs to be compared between later and less numerous laboratory analyses, and less precise but more abundant and immediate field analyses. It may be demonstrated that, in many cases, the fit–for-purpose nature of the latter allows a better confidence level. Quality compromises associated with field analyses can be reduced by the application of better sample preparation and quality assurance/quality control (QA/QC) procedures. Most of the further development of on-site chemical analysis is expected to be based on its integration with lab methods and on sound QA/QC practice, allowing a precise evaluation of its confidence level and uncertainties. Mineralogical analyses are constrained by our ability to interpret the data in near-real time but offer promising approaches in both surface and drilling exploration campaigns.

Thematic collection: This article is part of the Exploration 17 collection available at: https://www.lyellcollection.org/cc/exploration-17

Background

People with pulmonary fibrosis often experience a protracted time to diagnosis, high symptom burden and limited disease information. This review aimed to identify the supportive care needs reported by people with pulmonary fibrosis and their caregivers.

Background and objectives

Shared decision making in patients with glomerular disease remains challenging because outcomes important to patients remain largely unknown. We aimed to identify and prioritize outcomes important to patients and caregivers and to describe reasons for their choices.

It is a source of frustration to many clinicians: you know what the patient's problem is, you know that effective and safe treatment is available, you've explained the disease and its causative mechanisms, the treatment and its principles, and the importance of taking the controller medication daily, you've prescribed this highly effective therapy and you've approached the patient with respect and patience, yet somehow the patient does not take the medication. When this patient has another exacerbation, you know it could have been prevented by following your advice and taking the medication.

Tigecycline serves as one of the antibiotics of last resort to treat multidrug-resistant (including carbapenem-resistant) pathogens. However, the recently emerged plasmid-mediated tigecycline resistance mechanism, Tet(X), challenges the clinical efficacy of this class of antibiotics. In this study, we detected 180 tet(X)-harboring Acinetobacter isolates (8.9%, n = 180) from 2,018 samples collected from avian farms and adjacent environments in China. Eighteen tet(X)-harboring isolates (10.0%) were found to cocarry the carbapenemase gene bla_NDM-1, mostly from waterfowl samples (94.4%, 17/18). Interestingly, among six Acinetobacter strains, tet(X) and bla_NDM-1 were found to colocalize on the same plasmids. Moreover, whole-genome sequencing (WGS) revealed a novel orthologue of tet(X) in the six isolates coharboring tet(X) and bla_NDM-1. Inverse PCR suggested that the two tet(X) genes form a single transposable unit and may be cotransferred. Sequence comparison between six tet(X)- and bla_NDM-1-coharboring plasmids showed that they shared a highly homologous plasmid backbone even though they were isolated from different Acinetobacter species (three from Acinetobacter indicus, two from Acinetobacter schindleri, and one from Acinetobacter lwoffii) from various sources and from different geological regions, suggesting the horizontal genetic transfer of a common tet(X)- and bla_NDM-1-coharboring plasmid among Acinetobacter species in China. Emergence and spread of such plasmids and strains are of great clinical concern, and measures must be implemented to avoid their dissemination.

Although they are usually not considered to be diabetes complications, musculoskeletal disorders (MSKDs) are common in individuals with type 1 or type 2 diabetes and can strongly interfere with daily diabetes care, especially in people using diabetes technologies. The authors of this retrospective study in a population of 140 patients with type 1 diabetes report the distribution of subtypes of MSKDs and speculate about the mechanisms involved. The authors emphasize the need for multidisciplinary care involving not only the diabetes care team but also orthopedic surgeons. This report should lead to large, prospective studies to increase knowledge about these under-studied complications.

Nguyen Tran Nam, former Deputy Minister of Construction, also President of the Vietnam Real Estate Association (VNREA) says in comparison to buying, renting a home is a better solution for young Vietnamese.

We are increasingly aware that our personal data is a valuable commodity – but just how valuable? A survey has revealed how much people are willing to sell their data for

Kate Darling researches human-robot interaction. She explains why we are prone to forming emotional connections with robots and what we can learn from our relationships with pets and other animals

As well as announcing reminders to stay away from each other, the robots also estimate how many people are in the park at any given time.

At the centre of our galaxy, six strange clouds that look like dust and gas orbit a black hole so closely that if they were really just clouds they should have been sucked in by now

Astronomers have spotted a star that is exploding with a brightness 100 times less than expected – and it’s a mystery exactly why the explosion is so dim

In our atmosphere, strange dense patches of charged air sometimes bounce radio waves around and disrupt radar – and now they have been spotted on Mars

We’ve spotted strange blasts of radio waves from space in a pattern that may be produced by a magnetised neutron star wobbling as it spins

White dwarf stars are common in the galaxy, but astronomers have found one that doesn't seem to obey the rules. They think it was born when two smaller white dwarfs merged together

Some black holes are way bigger than we can explain, and they may have come from supermassive stars that formed by devouring the other stars around them

New images reveal threads of ultra-hot gas woven throughout the sun's corona, in the most detailed look at previously unseen parts of the atmosphere of our closest star

Weird blasts of radio waves from space called fast radio bursts have been baffling astronomers since they were discovered, but after finding one in our galaxy we may finally know what creates them

The unique body and locomotion strategies of echinoderms inspired this robot that emulates a juvenile sea urchin

Janelle Shane talks about the absurdity, perils, and limits of AI

We send some Fire Emblem info DIRECTLY to you. Then Alice gets Chris up to speed on the latest in Final Fantasy MMOs. Finally we...

Before the rush of releases at the end of January, we talk about your feedback, our briefs turn into longer discussions, and we get really confused about a new...farming...eSport?!

After analyzing 95 million traffic stop records, filed by officers with 21 state patrol agencies and 35 municipal police forces from 2011 to 2018, researchers concluded that 'police stops and search decisions suffer from persistent racial bias.'

Early in life, babies gain billions of viruses that target gut bacteria – but breastfed babies are less likely to pick up viruses that infect human cells

Three doctors reveal what it was like at the heart of Hubei province’s coronavirus crisis, as the epidemic peaked in Wuhan and spread elsewhere